International Journal of Plasticity最新文献

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Multiple recrystallization mechanisms of adiabatic shear bands: Observations via electromagnetic force-induced wide-range transition zones 绝热剪切带的多种再结晶机制:电磁力诱导大范围过渡区的观察
IF 9.4 1区 材料科学
International Journal of Plasticity Pub Date : 2025-06-06 DOI: 10.1016/j.ijplas.2025.104389
Hanwei Ning , Yichao Lv , Yujie Yao, Jianghua Deng, Chengpeng Gong, Zhisong Fan
{"title":"Multiple recrystallization mechanisms of adiabatic shear bands: Observations via electromagnetic force-induced wide-range transition zones","authors":"Hanwei Ning ,&nbsp;Yichao Lv ,&nbsp;Yujie Yao,&nbsp;Jianghua Deng,&nbsp;Chengpeng Gong,&nbsp;Zhisong Fan","doi":"10.1016/j.ijplas.2025.104389","DOIUrl":"10.1016/j.ijplas.2025.104389","url":null,"abstract":"<div><div>Over the past decades, the formation mechanisms of adiabatic shear bands under dynamic loading have attracted wide coverage from researchers. This study introduces a novel approach focusing on the transition zones at ASB edge rather than their fully recrystallized center to advance current understanding. These regions can be regarded as transitional stages within the unaccomplished dynamic recrystallization process, thereby demonstrating the accurate evolution. Using electromagnetic riveting processing of commercial 2A10 Al-Cu alloy, we generated ASB (&gt;130 μm) with distinguishable edge regions exceeding 10 μm in width. Through microstructure characterization under focused ion beam and kinetic analysis, the direct microscopic evidence of rotational dynamic recrystallization and additional recrystallization mechanisms activated alongside rotational dynamic recrystallization were discovered. The results demonstrate the sequential mechanisms: rotational dynamic recrystallization initiates firstly during deformation, producing ultrafine grains at ASB centers; discontinuous dynamic recrystallization subsequently emerges with localized temperature elevation; continuous dynamic recrystallization requires a longer duration than the deformation process itself, classified as incomplete recrystallization.</div></div>","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"191 ","pages":"Article 104389"},"PeriodicalIF":9.4,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144228990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Coupled phase field damage and crystal plasticity analysis of intragranular fracture: The role of crystallographic orientation and voids 晶内断口相场损伤与晶体塑性耦合分析:晶体取向和孔洞的作用
IF 9.4 1区 材料科学
International Journal of Plasticity Pub Date : 2025-06-05 DOI: 10.1016/j.ijplas.2025.104372
Aashique A. Rezwan, Nicole K. Aragon, David Montes de Oca Zapiain, Hojun Lim
{"title":"Coupled phase field damage and crystal plasticity analysis of intragranular fracture: The role of crystallographic orientation and voids","authors":"Aashique A. Rezwan,&nbsp;Nicole K. Aragon,&nbsp;David Montes de Oca Zapiain,&nbsp;Hojun Lim","doi":"10.1016/j.ijplas.2025.104372","DOIUrl":"10.1016/j.ijplas.2025.104372","url":null,"abstract":"<div><div>Damage evolution in engineering metal alloys at the grain scale exhibits significant microstructural heterogeneity and anisotropy. These heterogeneities create local hotspots for stress and strain localization, leading to void nucleation. Crystal orientation influences the active slip systems around voids, affecting lattice rotation and potentially forming discontinuities. At low triaxiality, voids may change shape due to lower stress, rotation, elongation, and coalescence. At high triaxiality, the correlation between crystal orientation and void growth rate becomes stronger, resembling the behavior observed in isolated single crystals. Therefore, understanding the effects of crystal orientation, heterogeneous strain, and defect evolution is crucial for single crystal fracture characterization. In this work, a coupled phase-field damage (PFD) and crystal plasticity (CP) model is implemented within a finite element framework to analyze crystal deformation and failure. The CP method employs a dislocation density-based constitutive model, while intragranular failure is modeled using an anisotropic PFD method. The PFD model considers both the stored energy due to elastic stretching and the energy release due to defect formation and crack formation. A single crystal Al2219 with an intracrystalline spherical void is chosen to analyze fracture. The study finds that fracture propagation is strongly correlated with crystal orientations. This coupled CP-PFD model provides accurate failure prediction in crystalline materials by incorporating the effects of crystal orientations and existing voids. This study demonstrates how the local microstructure and defects influence plastic deformation and failure mechanisms in metal alloys.</div></div>","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"191 ","pages":"Article 104372"},"PeriodicalIF":9.4,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144228995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Role of recovery in the microstructure development and mechanical behavior of a ductile Mg-Zn-Nd-Y-Zr alloy: an analysis using EBSD data and crystal plasticity simulations 恢复在延展性Mg-Zn-Nd-Y-Zr合金微观组织发展和力学行为中的作用:利用EBSD数据和晶体塑性模拟进行分析
IF 9.4 1区 材料科学
International Journal of Plasticity Pub Date : 2025-06-04 DOI: 10.1016/j.ijplas.2025.104380
José Victoria-Hernández , Youngung Jeong , Dietmar Letzig
{"title":"Role of recovery in the microstructure development and mechanical behavior of a ductile Mg-Zn-Nd-Y-Zr alloy: an analysis using EBSD data and crystal plasticity simulations","authors":"José Victoria-Hernández ,&nbsp;Youngung Jeong ,&nbsp;Dietmar Letzig","doi":"10.1016/j.ijplas.2025.104380","DOIUrl":"10.1016/j.ijplas.2025.104380","url":null,"abstract":"<div><div>A highly deformable Mg-Zn-Nd-Y-Zr alloy was investigated in terms of anisotropic and temperature-dependent mechanical behavior, with an emphasis on the microstructural changes. Uniaxial tension tests were conducted along the rolling (RD) and transverse (TD) directions at room temperature (298 K) and at 498 K, during which a series of <em>ex-situ</em> EBSD scans were obtained. In addition to quantitative texture analysis based on the EBSD scans, the relative contributions of various slip systems were estimated via slip trace analysis. Moreover, the effect of static recovery was investigated by additional two-step tension tests with intermediate annealing at 498 K. The microstructure development due to recovery was analyzed via <em>ex-situ</em> EBSD scans by analyzing the grain average misorientation, kernel average misorientation, and in-grain misorientation axis evolution. Experimental results were interpreted using crystal plasticity simulations based on the incremental elasto-visco-plastic self-consistent polycrystal model (ΔEVPSC). Remarkably, a single set of parameters sufficed to describe the complex anisotropic and temperature-dependent behavior of the Mg-Zn-Nd-Y-Zr alloy by utilizing a dislocation density-based hardening model (DDH). The recovery, mainly of non-basal dislocations, significantly affected the flow stress responses, which allowed not only to describe the hardening behavior but also the anisotropy, characterized by the R-value and texture.</div></div>","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"191 ","pages":"Article 104380"},"PeriodicalIF":9.4,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Non-equilibrium solidification complexions in additive manufacturing enable exceptional creep resistance: An example in nickel-based superalloys 在增材制造中,非平衡凝固可以实现优异的抗蠕变性能:以镍基高温合金为例
IF 9.4 1区 材料科学
International Journal of Plasticity Pub Date : 2025-06-03 DOI: 10.1016/j.ijplas.2025.104379
Y.S. Li , L.Q. Cui , J.H. Xu , T.Z. Xin , S. Jiang , Y. Li , H.H. Zhang , X.F. Dang , S. Gao , Y.H. Mu , K.J. Lu , J. Moverare , W.F. He
{"title":"Non-equilibrium solidification complexions in additive manufacturing enable exceptional creep resistance: An example in nickel-based superalloys","authors":"Y.S. Li ,&nbsp;L.Q. Cui ,&nbsp;J.H. Xu ,&nbsp;T.Z. Xin ,&nbsp;S. Jiang ,&nbsp;Y. Li ,&nbsp;H.H. Zhang ,&nbsp;X.F. Dang ,&nbsp;S. Gao ,&nbsp;Y.H. Mu ,&nbsp;K.J. Lu ,&nbsp;J. Moverare ,&nbsp;W.F. He","doi":"10.1016/j.ijplas.2025.104379","DOIUrl":"10.1016/j.ijplas.2025.104379","url":null,"abstract":"<div><div>Insufficient time-dependent properties at elevated temperatures, particularly creep resistance and ductility, are currently crucial factors impeding the use of additively manufactured Hastelloy X (HX). To address this limitation, a micro-nano olive-shaped carbide network was purposely introduced into HX via laser powder bed fusion (L-PBF) and following optimized heat treatment. The inherent chemical heterogeneity combined with the sufficient stored energy of boundaries, induced by the ultrafast cooling rate of the L-PBF process, creates favorable conditions for the formation of micro-nano precipitate networks. Compared to its untreated counterpart, the optimized HX exhibited considerably improved creep resistance, with an 85 % increase in creep life and a 122 % improvement in fracture ductility. Furthermore, through multiscale characterization techniques and theoretical calculations, the preferential precipitation behavior of the micro-nano carbide networks was systematically investigated from both kinetic and thermodynamic perspectives. The superior creep resistance of the L-PBF HX, decorated with carbide networks, stems from the synergistic effects of the high cavity surface energy, effective pinning for grain boundary sliding, and reduced plasticity-assisted diffusion rate, which markedly inhibit the nucleation and growth of microvoids during high-temperature deformations. This work provides a comprehensive understanding of the strengthening mechanisms associated with non-equilibrium solidification-facilitated carbide networks, providing new insights into the targeted design and optimization of L-PBF alloys.</div></div>","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"191 ","pages":"Article 104379"},"PeriodicalIF":9.4,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling hydrogen diffusion and its interaction with deformed microstructure involving phase transformation–Theory, numerical formulation, and validation 氢扩散模型及其与相变变形微观结构的相互作用-理论,数值公式和验证
IF 9.4 1区 材料科学
International Journal of Plasticity Pub Date : 2025-06-02 DOI: 10.1016/j.ijplas.2025.104377
Jinheung Park , Geonjin Shin , Kijung Kim , Taejoon Park , Farhang Pourboghrat , Seok Su Sohn , Myoung-Gyu Lee
{"title":"Modeling hydrogen diffusion and its interaction with deformed microstructure involving phase transformation–Theory, numerical formulation, and validation","authors":"Jinheung Park ,&nbsp;Geonjin Shin ,&nbsp;Kijung Kim ,&nbsp;Taejoon Park ,&nbsp;Farhang Pourboghrat ,&nbsp;Seok Su Sohn ,&nbsp;Myoung-Gyu Lee","doi":"10.1016/j.ijplas.2025.104377","DOIUrl":"10.1016/j.ijplas.2025.104377","url":null,"abstract":"<div><div>This study presents, for the first time, a model capable of simulating the complex interactions among deformation, phase transformation, and hydrogen (H) diffusion in H-charged transformation-induced plasticity (TRIP)-assisted steel. The model integrates a crystal plasticity (CP) framework with a deformation-induced martensitic transformation (DIMT) model and a H diffusion model while incorporating transformation-induced H release (TIHR). Furthermore, it accounts for H-enhanced localized plasticity (HELP) and H-enhanced phase transformation (HEPT) to capture the influence of H on mechanical behavior. The developed model is numerically implemented using the finite element method, and a series of case studies are conducted to systematically investigate the interplay between deformation, phase transformation, and H diffusion. The simulation results successfully support experimentally reported observations, demonstrating that phase transformation leads to a significant increase in H concentration within austenite and transformed martensite. This results in local oversaturation of H and anomalous diffusion, which are expected to contribute to increased susceptibility to H embrittlement (HE). These findings suggest that metastable austenite is significantly more susceptible to HE than stable austenite. Overall, the proposed model enhances the understanding of the intricate mechanisms governing H-charged TRIP-assisted steels, providing valuable insights for designing materials with improved resistance to HE.</div></div>","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"191 ","pages":"Article 104377"},"PeriodicalIF":9.4,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144193303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lüders band-assisted high uniform ductility in ultrastrong ferrous medium-entropy alloy via hierarchical microstructure 基于分层显微组织的<s:1> ders波段辅助的超强亚铁中熵合金的高均匀塑性
IF 9.4 1区 材料科学
International Journal of Plasticity Pub Date : 2025-05-27 DOI: 10.1016/j.ijplas.2025.104378
Hyeonseok Kwon , Jae Heung Lee , Alireza Zargaran , Stefanus Harjo , Wu Gong , Jaemin Wang , Gang Hee Gu , Byeong-Joo Lee , Jae Wung Bae , Hyoung Seop Kim
{"title":"Lüders band-assisted high uniform ductility in ultrastrong ferrous medium-entropy alloy via hierarchical microstructure","authors":"Hyeonseok Kwon ,&nbsp;Jae Heung Lee ,&nbsp;Alireza Zargaran ,&nbsp;Stefanus Harjo ,&nbsp;Wu Gong ,&nbsp;Jaemin Wang ,&nbsp;Gang Hee Gu ,&nbsp;Byeong-Joo Lee ,&nbsp;Jae Wung Bae ,&nbsp;Hyoung Seop Kim","doi":"10.1016/j.ijplas.2025.104378","DOIUrl":"10.1016/j.ijplas.2025.104378","url":null,"abstract":"<div><div>In this work, we harness a hierarchical microstructure to tailor both the strengthening and deformation mechanisms of Co<sub>21</sub>Cr<sub>12.5</sub>Fe<sub>55</sub>Ni<sub>4</sub>Mo<sub>7.5</sub> (at %) ferrous medium-entropy alloy (MEA) simultaneously. A simple thermomechanical processing (cold rolling and 90 s of annealing) creates a hierarchical microstructure composed of ultrafine recrystallized grains, non-recrystallized grains with rolling-driven substructures, and intragranular nanoprecipitates. The hierarchical microstructure with the high density of dislocations and ultrafine recrystallized grains leads to a high yield strength of ∼1.60 GPa, but it is well-known that the same features can make materials vulnerable to premature fracture. To solve this issue, Lüders deformation, which was induced by the ultrafine grain boundaries and stress-induced martensitic transformation facilitated by pre-existing martensite nucleation sites, was harnessed: stable propagation of the Lüders band delays massive strain hardening by regulating strain-induced martensitic deformation that ensues and enables a large uniform ductility. Resultantly, tensile strength of ∼1.84 GPa and uniform elongation of ∼20 % are achieved, on par with the finest tensile properties among multi-principal element alloys ever reported. Our results point to a paradigm to achieve a large uniform ductility via harnessing the Lüders deformation without compromising strength, based on the hierarchical microstructure.</div></div>","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"190 ","pages":"Article 104378"},"PeriodicalIF":9.4,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144145705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Grain-scale micromechanical behaviors of hexagonal titanium utilizing in-situ high-energy diffraction microscopy and crystal plasticity finite element simulations 利用原位高能衍射显微镜和晶体塑性有限元模拟六方钛的晶粒尺度微观力学行为
IF 9.4 1区 材料科学
International Journal of Plasticity Pub Date : 2025-05-27 DOI: 10.1016/j.ijplas.2025.104370
Yiping Xia , Yuhang Wang , He Wu , Yiming Yang , Xinbo Ni , Kesong Miao , Xuewen Li , Guohua Fan
{"title":"Grain-scale micromechanical behaviors of hexagonal titanium utilizing in-situ high-energy diffraction microscopy and crystal plasticity finite element simulations","authors":"Yiping Xia ,&nbsp;Yuhang Wang ,&nbsp;He Wu ,&nbsp;Yiming Yang ,&nbsp;Xinbo Ni ,&nbsp;Kesong Miao ,&nbsp;Xuewen Li ,&nbsp;Guohua Fan","doi":"10.1016/j.ijplas.2025.104370","DOIUrl":"10.1016/j.ijplas.2025.104370","url":null,"abstract":"<div><div>Coupling crystal plasticity finite element (CPFE) simulations with in-situ characterization techniques offers a robust framework for exploring the micromechanical behavior of polycrystalline metals. In this study, we tracked the evolution of the complete elastic strain tensor and orientation rotation of hundreds of grains in a hexagonal titanium (Ti) sample under uniaxial tension using in-situ high-energy diffraction microscopy (HEDM). These experimental observations were systematically compared to CPFE simulations instantiated with experimentally characterized results. It was found that CPFE simulations successfully replicate the macroscopic stress-strain response and texture evolution of polycrystalline Ti, however, only partially capture grain-scale micromechanical behaviors, particularly regarding grain-resolved elastic strains and orientation rotations. Detailed grain-to-grain comparison metrics reveal that incorporating residual stresses into CPFE models significantly improves the predictive accuracy of micromechanical behaviors. Moreover, simulations involving pyramidal &lt;a&gt; slip systems with high critical resolved shear stress, show slightly enhanced predictive performance. Further analyses of individual grains showcase how residual stresses and slip systems selections influence the micromechanical behaviors, highlighting the importance of the grain-scale stress state in determining deformation mechanisms. To understand the role of strain gradient effects in grain-scale stress heterogeneity, a non-local dislocation-based CPFE model was further compared to the phenomenological model discussed above. Although pronounced localized stresses and altered deformation mechanisms were observed near grain boundaries, the dislocation-based CPFE model still cannot significantly improve the predictions of grain-scale micromechanical behaviors. This work deepens the fundamental understanding of deformation mechanisms in hexagonal metals, and offers valuable insights into micromechanical modeling of polycrystalline materials.</div></div>","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"190 ","pages":"Article 104370"},"PeriodicalIF":9.4,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144148071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancement of mechanical properties in AZ91D magnesium alloy via wire arc additive manufacturing: influence of rapid solidification and solute segregation on microstructure and deformation behavior 电弧增材制造增强AZ91D镁合金力学性能:快速凝固和溶质偏析对组织和变形行为的影响
IF 9.4 1区 材料科学
International Journal of Plasticity Pub Date : 2025-05-26 DOI: 10.1016/j.ijplas.2025.104376
Weizong Bao , Bingnan Qian , Huaqing Yi , Sihao Zou , Ziqi Mei , Changmeng Liu , Binbin He , Yueling Guo , Wenjun Lu
{"title":"Enhancement of mechanical properties in AZ91D magnesium alloy via wire arc additive manufacturing: influence of rapid solidification and solute segregation on microstructure and deformation behavior","authors":"Weizong Bao ,&nbsp;Bingnan Qian ,&nbsp;Huaqing Yi ,&nbsp;Sihao Zou ,&nbsp;Ziqi Mei ,&nbsp;Changmeng Liu ,&nbsp;Binbin He ,&nbsp;Yueling Guo ,&nbsp;Wenjun Lu","doi":"10.1016/j.ijplas.2025.104376","DOIUrl":"10.1016/j.ijplas.2025.104376","url":null,"abstract":"<div><div>The short-process fabrication of high-performance magnesium alloys holds great promise for aerospace and automotive applications, driving advancements in high-end manufacturing. In this study, tungsten inert gas (TIG)-protected wire arc additive manufacturing (WAAM) was employed to produce AZ91D Mg alloy with a weakly textured, equiaxed grain structure. The resulting alloy exhibits an ultimate tensile strength of 284 MPa and uniform elongation of 12.5 %, facilitated by enhanced work hardening. Optimized solidification conditions \"freeze\" solute atoms in a supersaturated state, inhibiting diffusion and precipitation, and result in a heterogeneous solute distribution. The elevated Al solute concentration suppresses twin propagation, leading to the formation of refined twin lamellae. The ensuing interactions between these fine twins and dislocations play a pivotal role in enhancing the work hardening capability. Additionally, the gradient distribution of Al solute atoms, together with the grain boundary segregation of Al/Zn, effectively weakens the texture, thereby preserving the mechanical isotropy of the WAAM-AZ91D alloy. Additionally, a gradient distribution of solid solution Al atoms extending from grain boundaries to the interior establishes a hardness gradient, effectively alleviating stress concentrations at grain boundaries during deformation and enabling uniform plastic deformation of WAAM-AZ91D. This work expands the application of post-treatment-free short-process fabrication techniques as an effective strategy for the rapid production of high-performance magnesium alloys, broadening their application scope.</div></div>","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"190 ","pages":"Article 104376"},"PeriodicalIF":9.4,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Developing and validating a fully coupled model of non-local crystal plasticity and probabilistic cellular automata for dynamic recrystallization simulation 建立并验证了用于动态再结晶模拟的非局部晶体塑性和概率元胞自动机的完全耦合模型
IF 9.4 1区 材料科学
International Journal of Plasticity Pub Date : 2025-05-26 DOI: 10.1016/j.ijplas.2025.104375
Xingyun Yang , Daming Tong , Miao Gong , Zhenghong Guo , Chuanwei Li , Jianfeng Gu
{"title":"Developing and validating a fully coupled model of non-local crystal plasticity and probabilistic cellular automata for dynamic recrystallization simulation","authors":"Xingyun Yang ,&nbsp;Daming Tong ,&nbsp;Miao Gong ,&nbsp;Zhenghong Guo ,&nbsp;Chuanwei Li ,&nbsp;Jianfeng Gu","doi":"10.1016/j.ijplas.2025.104375","DOIUrl":"10.1016/j.ijplas.2025.104375","url":null,"abstract":"<div><div>This study presents a fully integrated model combing non-local crystal plasticity finite element method (CPFEM) and probabilistic cellular automata (CA) to capture the coupled effect of heterogeneous deformation, morphological evolution and mechanical responses during dynamic recrystallization (DRX). The developed model incorporates a non-local methodology that accounts for geometrically necessary dislocations (GND) and a probabilistic CA model that describes DRX microstructural evolution, both of which are integrated into CPFEM formulations that handle multiscale heterogeneous deformation. Based on the periodic polycrystalline grids serving as both finite elements and CA cells, the non-uniform distribution of mechanical responses at grain-level, including two types of dislocation densities is calculated through CPFEM. The microstructural evolution of DRX, synchronized with deformation, is predicted through CA model with probabilistic switching rules. The DRX induced changes in dislocation densities and crystallographic orientation are then fed back into CPFEM to determine the subsequent mechanical response and plastic deformation. The proposed model is validated against experimental data for SA508–3 steel during hot compression bonding (HCB) process. It’s demonstrated that the proposed model effectively integrates predictions of macroscale mechanical response, mesoscale dislocation density distribution, and microscale microstructural evolution during DRX. Furthermore, the model can be extended to other problems by adapting corresponding CA switching rules.</div></div>","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"190 ","pages":"Article 104375"},"PeriodicalIF":9.4,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Promoting strength-ductility synergy through sequential martensitic transformation in a hierarchical heterostructured eutectic high-entropy alloy 层次化异质共晶高熵合金中顺序马氏体相变促进强度-延性协同作用
IF 9.4 1区 材料科学
International Journal of Plasticity Pub Date : 2025-05-22 DOI: 10.1016/j.ijplas.2025.104374
Haoxiang Liu , Yixuan He , Mingyang Li , Yuhao Wu , Shaolong Li , Xudong Liu , Huihui Zhi , Haifeng Wang
{"title":"Promoting strength-ductility synergy through sequential martensitic transformation in a hierarchical heterostructured eutectic high-entropy alloy","authors":"Haoxiang Liu ,&nbsp;Yixuan He ,&nbsp;Mingyang Li ,&nbsp;Yuhao Wu ,&nbsp;Shaolong Li ,&nbsp;Xudong Liu ,&nbsp;Huihui Zhi ,&nbsp;Haifeng Wang","doi":"10.1016/j.ijplas.2025.104374","DOIUrl":"10.1016/j.ijplas.2025.104374","url":null,"abstract":"<div><div>The transformation-induced plasticity (TRIP) effect presents a promising approach to overcome the strength-ductility dilemma in eutectic high-entropy alloys (EHEAs). However, interface instability during phase transformation often leads to reduced ductility due to interfacial cracking. Here, we develop a hierarchical heterostructure EHEA comprising alternating lamellar and equiaxed regions that achieves an exceptional strength-ductility synergy, demonstrating an ultimate tensile strength of 1.56 GPa coupled with 20.7% uniform elongation. The sustained and effective work-hardening behavior of the alloy stems from a sequential martensitic transformation process across different regions, where the transformation kinetics are precisely controlled through B2 phase stability and stress partitioning between regions. Additionally, the formation of a stacking fault network in FCC phases further enhances work-hardening capacity. Notably, exceptionally hetero-deformation induced (HDI) strengthening arises from the multi-scale strain partitioning across different regions and among various phases within the unique hierarchical heterogeneous structure. This study opens a new avenue for designing advanced TRIP-assisted high-performance EHEAs by introducing a hierarchical heterostructure to tailor the kinetics of martensitic transformation.</div></div>","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"190 ","pages":"Article 104374"},"PeriodicalIF":9.4,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144113358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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